Stanchion.



G. D. BALDER.

STANCHION.

APPLICATION FILED AUG.31, m5.

1 ,1 98,989. Patented Sept. 19, 1916.

2 SHEETS-SHEET]: I-

GEORGE D. BALDER, OF FOLEY, MINNESOTA.

STANCHION.

Specification of Letters Patent.

Patented Sept. 19, 1916.

Application filed August 31, 1915. Serial No. 48,314.

To all whom it may concern Be it known that I, GEORGE D. BALDER, acitizen of the United States, residing at Foley, in the county of Bentonand State of Minnesota, have invented certain new and usefulImprovements in Stanchions; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

The primary object of this invention is to provide a cheap, durable, andefficient stanchion that will be automatically operated upon theinsertion of the head of the animal into the frame of the structure.

Another object of the invention is to provide a stanchion of the natureabove set foi-tlntlie clamping portions of which when moved to set orunlocking position, will be so held in the said position that they willbe only operated upon the insertion of the head of the animal within theframe.

A further object of the invention is to admit of the releasing of theclamping portions of the stanchion from said position, being onlyeffected by the animal when the animals head is positioned within theframe.

Other objects will appear and be better understood from that embodimentof my invention of which the following is a specification, referencebeing had to the accompanying drawings forming a part thereof, in whichFigure 1 is a front elevation of the stanchion showing the clampingmembers in clamping position. Fig. 2 is a side elevation of the viewshown in Fig. 1. Fig. 3 is a front elevation of the stanchion showingthe clamping members in unclamping position. Fig. f is a sectional viewthrough the upper ends of the clamping members of the stanchion, andFig. 5 is a sectional detail view through the lower ends of the clampingmembers.

Referring to the drawings more in detail, the letter A designates astanchion as an entirety, which consists of a frame having the oppositeside bars 1 and 2 and connecting end bars 3 and 1. Positioned within theframe is a pair of vertically disposed companion clamping members 5 and6. The lower ends of the members 5 and 6 are curved in the direction ofeach other, as shown by the numerals 7 and 8 respectively. The oppositesides of the curved end 7 of the clamping member 5 have secured theretoa pair of substantially V-shaped plates 9. These plates 9 have one endsecured to the adjacent side of the curved end 7, by means of pins 10.The opposite ends of the plates 9 extend beyond the terminal of thecurved end 7 and are positioned, respectively on opposite sides of thecurved end 8 of the clamping member 6 and pivoted thereto by means ofthe pivot pin 11.

A contractile spring 12 is disposed below the curved ends of theclamping members 5 and 6 and spaced therefrom and the opposite ends ofthe wire which form the spring are bent inwardly from the extreme coilsof the spring as shown at 13 and 1A and partially overlie the uppersurface of the spring, the said ends of the wire are then continued fromthe inwardly bent portions 13 and 1A and curved outwardly as at 15 and16 to engage around the under surface of the curved ends 7 and S, andsecured thereto by means of fastening means 17. The ends of the wire arethen bent upwardly from the curved portions 15 and 16, and parallel withthe clamping members 5 and 6 and are secured thereto by means offastening elements 18.

The upper end of the clamping member 7.

is provided with an angularly and inwardly extending arm 19. This arm 19is provided with a longitudinal slot 20, which opens into one end andthe upper and lower sides of the arm. A latch 21 is associated with thearm 19 and is formed of a single piece of wire, which is bentapproximately centrally, upon itself and formed to provide a downwardlycurved manipulating portion 22, one end of the wire being extendeddownwardly and into the slot 20 and medially coiled to provide an eye23, which receives a pivot pin 21' which is positioned within the slotand which has its opposite ends positioned in opposite walls of the slot20 and the terminal of the adjacent end of the wire extends below thearm 19 to provide a trigger 25, for a purpose to be here ina-fterstated, and has an eye formed thereon as shown at 26. The opposite endof the wire is bent and extended outwardly from the manipulating portion22, and overlies the free end of the arm and has its terminal extendeddownwardly and formed substantially into a compound curve as shown at27, to provide a locking portion, for a purpose to be hereinafterstated.

The clamping member 6 is provided with a right angularly and inwardlyextending arm 28. This arm 28 is disposed below the upper terminal ofthe clamping member 6 and in line with the trigger and it is adapted toengage the trigger when the clamping members are moved toward eachother.

The clamping member 5 has pivoted thereto, one end of a trip lever 29.The opposite end of the trip lever is received by a keeper 30, which issecured to the clamping member 6. The terminal of the free end of thetrip lever is bent into sub stantially U-shape as shown at 31, and oneside of the U-shaped terminal is curved outwardly, at a point below thepoint of juncture with the bight portion of the U-shaped member as isshown at iVhen the clamping members 5 and 6 are in unclamping position,as shown in Fig. 3, the U-shaped terminal of the trip lever en gagesover the lower horizontal arm 33 of the keeper and holds the clampingmembers set or in unclamping position. The trip lever is so disposed onthe clamping members, that it will readily admit of the animal insertingits head thereunder and when the upper surface of the animals neck comesin contact with the trip lever, the latter will be raised upwardly,resulting in the disengaging of the U-shaped portion 31 of the triplever, from the arm. 33 of the keeper, and the moving of the clampingmembers toward each other or to clamping position, by means of thespring 12, which is adapted to be placed under'tension when the clampingmembers are moved to open position. hen the clamping members are movedinto operative position the arm 28 engages the trigger 25, to cause thecompound curved portion 27 to engage over the upper end of the clampingmember 6 and hold the clamping members in closed position, as shown inFig. 1. The arm 19 has mounted thereon a U-shaped member 34:, which isformed of spring metal and has the terminals of its sides projectingbeyond the free end of the arm 19'and deflected outwardly as shown atand 36. The deflected terminals 35 and 36 are adapted to receivetherebetween the upper end of the clamping member 6, when the latter ismoved to closed position, as shown in Fig. 1, and to frictionally engagethe same so as to assist the arm in holding the latter in closedposition. L

The clamping member 6 has associated therewith a yoke-shaped member 37.This member is formed preferably of a single piece ofwire bent andengaged over the clamping member as shown in Fig. 8 and coiled toprovide eyes 39 and 40 which receive the opposite terminals of pin 41,which extends through the clamping member 6,

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner 0 Patents,

the ends of the wire being extended out wardly in parallelism as at and$3 and adapted when the clamping members are in open position to engage,respectively, the opposite sides of the cross bar 2 of the frame andhold the clamping members against lateral movement, as shown in Fig. 1.When the clamping members are in their closed position the trip lever 99can be swung upwardly, as shown in dotted lines in Fig. 1, so as toadmit of the curved portion 32 engaging over the upper horizontal armill of the keeper and hold the trip lever from engagement with the neckof the animal.

The clamping members 5 and 6 are susnded within the frame by means ofchains and -il-6. These'chains are positioned, respectively, at theupper and lower ends of the frame, and are secured thereto in anysuitable manner and the chain 45 has one end connected to the arm 19 andthe chain i6 has one end. connected to the spring 12, in any suitablemanner. The chains '45 and l6 admit of the clamping members being movedin unison with the movement of the head of the animal, when the animalpositions its head betweenthe clampingcnembers, thereby permitting offree movement of the head of the animal between the clamping members.

From the foregoing description taken in Having thus described my.invention,

what I claim as new is In a stanchion, the combination with the endpivotally connected to one of the clamp-- ing sections, and having itsopposite end provided with a U-shaped portion, one side of the U-shapedport-ion having an offset portion, means on the other clamping sectionfor detachably engaging the U-shaped portion of the trip lever when theclamping sections are in unclamping position, and a second means on thelast mentioned clamping section for engaging in the ofiset portion ofthe said side of the Ushaped portion when the clamping sections are inclamping position, as and for the purpose specified.

In testimony whereof I aflix my signature in presence of two. witnesses.

GEGRGE D. BALDER.

Witnesses:

J. E. DonIiNY, M. T. Batman.

Washington, D. C.

